Present study is in progress since 1990-91 at Crop Research Centre of G. B. Pant University of Agriculture and Technology, Pantnagar, U.S.Nagar (Uttaranchal) to study the long term effects of herbicide use in rice-wheat system. Treatments consisted of combinations of butachlor at 1.5 kg ha-1,hand weeding (30 and 60 days after transplanting) and weedy check in rice and each kharif season treatment followed by isoproturon at 1.0 kg ha-1,hand weeding twice (30 and 60 days after sowing) and weedy check in wheat. Experiment was laid out in randomized block design, with nine treatments and three...
Present study is in progress since 1990-91 at Crop Research Centre of G. B. Pant University of Agriculture and Technology, Pantnagar, U.S.Nagar (Uttar...